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1 /*
2  * Copyright (c) 2021 HPMicro
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  *
6  */
7 
8 #ifndef HPM_OV7725_H
9 #define HPM_OV7725_H
10 #include "hpm_common.h"
11 #include "hpm_camera_config.h"
12 
13 #define OV7725_ACTIVE_IMAGE_WIDTH  (480U)
14 #define OV7725_ACTIVE_IMAGE_HEIGHT (480U)
15 #define OV7725_I2C_ADDR (0x21U)
16 #define OV7725_CHIP_ID_HIGH_BYTE_ADDR             (0x0A)
17 #define OV7725_CHIP_ID_HIGH_BYTE_VALUE            (0x77)
18 #define OV7725_CHIP_ID_LOW_BYTE_ADDR              (0x0B)
19 #define OV7725_CHIP_ID_LOW_BYTE_VALUE             (0x21) /* need to check */
20 
21 #define OV7725_RST_ACTIVE    0
22 #define OV7725_RST_INACTIVE  1
23 #define OV7725_PWDN_ACTIVE   1
24 #define OV7725_PWDN_INACTIVE 0
25 
26 #define GAIN                    (0x00U) /* AGC – Gain control gain setting */
27 #define BLUE                    (0x01U) /* AWB – Blue channel gain setting */
28 #define RED                     (0x02U) /* AWB – Red channel gain setting */
29 #define GREEN                   (0x03U) /* AWB – Green channel gain setting */
30 
31 #define BAVG                    (0x05U) /* U/B Average Level */
32 #define GAVG                    (0x06U) /* Y/Gb Average Level */
33 #define RAVG                    (0x07U) /* V/R Average Level */
34 #define AECH                    (0x08U) /* Exposure Value – AEC MSBs */
35 
36 #define COM2                    (0x09U) /* Common Control 2 */
37 #define COM2_SOFT_SLEEP         (0x10U) /* Soft sleep mode */
38 #define COM2_OUT_DRIVE_1x       (0x00U) /* Output drive capability 1x */
39 #define COM2_OUT_DRIVE_2x       (0x01U) /* Output drive capability 2x */
40 #define COM2_OUT_DRIVE_3x       (0x02U) /* Output drive capability 3x */
41 #define COM2_OUT_DRIVE_4x       (0x03U) /* Output drive capability 4x */
42 
43 #define PID                 (0x0AU) /* Product ID Number MSB */
44 #define VER                 (0x0BU) /* Product ID Number LSB */
45 
46 #define COM3                    (0x0CU) /* Common Control 3 */
47 #define COM3_VFLIP              (0x80U) /* Vertical flip image ON/OFF selection */
48 #define COM3_MIRROR             (0x40U) /* Horizontal mirror image ON/OFF selection */
49 #define COM3_SWAP_BR            (0x20U) /* Swap B/R output sequence in RGB output mode */
50 #define COM3_SWAP_YUV           (0x10U) /* Swap Y/UV output sequence in YUV output mode */
51 #define COM3_SWAP_MSB           (0x08U) /* Swap output MSB/LSB */
52 #define COM3_TRI_CLOCK          (0x04U) /* Tri-state option for output clock at power-down period */
53 #define COM3_TRI_DATA           (0x02U) /* Tri-state option for output data at power-down period */
54 #define COM3_COLOR_BAR          (0x01U) /* Sensor color bar test pattern output enable */
55 
56 #define COM4                    (0x0DU) /* Common Control 4 */
57 #define COM4_PLL_BYPASS         (0x00U) /* Bypass PLL */
58 #define COM4_PLL_4x             (0x40U) /* PLL frequency 4x */
59 #define COM4_PLL_6x             (0x80U) /* PLL frequency 6x */
60 #define COM4_PLL_8x             (0xc0U) /* PLL frequency 8x */
61 #define COM4_AEC_FULL           (0x00U) /* AEC evaluate full window */
62 #define COM4_AEC_1_2            (0x10U) /* AEC evaluate 1/2 window */
63 #define COM4_AEC_1_4            (0x20U) /* AEC evaluate 1/4 window */
64 #define COM4_AEC_2_3            (0x30U) /* AEC evaluate 2/3 window */
65 
66 #define COM5                    (0x0EU) /* Common Control 5 */
67 #define COM5_AFR                (0x80U) /* Auto frame rate control ON/OFF selection (night mode) */
68 #define COM5_AFR_SPEED          (0x40U) /* Auto frame rate control speed selection */
69 #define COM5_AFR_0              (0x00U) /* No reduction of frame rate */
70 #define COM5_AFR_1_2            (0x10U) /* Max reduction to 1/2 frame rate */
71 #define COM5_AFR_1_4            (0x20U) /* Max reduction to 1/4 frame rate */
72 #define COM5_AFR_1_8            (0x30U) /* Max reduction to 1/8 frame rate */
73 #define COM5_AFR_4x             (0x04U) /* Add frame when AGC reaches 4x gain */
74 #define COM5_AFR_8x             (0x08U) /* Add frame when AGC reaches 8x gain */
75 #define COM5_AFR_16x            (0x0cU) /* Add frame when AGC reaches 16x gain */
76 #define COM5_AEC_NO_LIMIT       (0x01U) /* No limit to AEC increase step */
77 
78 #define COM6                    (0x0FU) /* Common Control 6 */
79 #define COM6_AUTO_WINDOW        (0x01U) /* Auto window setting ON/OFF selection when format changes */
80 
81 #define AEC                     (0x10U) /* AEC[7:0] (see register AECH for AEC[15:8]) */
82 #define CLKRC                   (0x11U) /* Internal Clock */
83 
84 #define COM7                    (0x12U) /* Common Control 7 */
85 #define COM7_RESET              (0x80U) /* SCCB Register Reset */
86 #define COM7_RES_VGA            (0x00U) /* Resolution VGA */
87 #define COM7_RES_QVGA           (0x40U) /* Resolution QVGA */
88 #define COM7_BT656              (0x20U) /* BT.656 protocol ON/OFF */
89 #define COM7_SENSOR_RAW         (0x10U) /* Sensor RAW */
90 #define COM7_FMT_GBR422         (0x02U) /* RGB output format GBR422 */
91 #define COM7_FMT_RGB565         (0x06U) /* RGB output format RGB565 */
92 #define COM7_FMT_RGB555         (0x0AU) /* RGB output format RGB555 */
93 #define COM7_FMT_RGB444         (0x0EU) /* RGB output format RGB444 */
94 #define COM7_FMT_YUV            (0x00U) /* Output format YUV */
95 #define COM7_FMT_P_BAYER        (0x01U) /* Output format Processed Bayer RAW */
96 #define COM7_FMT_R_BAYER        (0x03U) /* Output format Bayer RAW */
97 
98 #define COM8                    (0x13U) /* Common Control 8 */
99 #define COM8_FAST_AUTO          (0x80U) /* Enable fast AGC/AEC algorithm */
100 #define COM8_STEP_VSYNC         (0x00U) /* AEC - Step size limited to vertical blank */
101 #define COM8_STEP_UNLIMIT       (0x40U) /* AEC - Step size unlimited step size */
102 #define COM8_BANDF_EN           (0x20U) /* Banding filter ON/OFF */
103 #define COM8_AEC_BANDF          (0x10U) /* Enable AEC below banding value */
104 #define COM8_AEC_FINE_EN        (0x08U) /* Fine AEC ON/OFF control */
105 #define COM8_AGC_EN             (0x04U) /* AGC Enable */
106 #define COM8_AWB_EN             (0x02U) /* AWB Enable */
107 #define COM8_AEC_EN             (0x01U) /* AEC Enable */
108 
109 #define COM9                    (0x14U) /* Common Control 9 */
110 #define COM9_HISTO_AVG          (0x80U) /* Histogram or average based AEC/AGC selection */
111 #define COM9_AGC_GAIN_2x        (0x00U) /* Automatic Gain Ceiling 2x */
112 #define COM9_AGC_GAIN_4x        (0x10U) /* Automatic Gain Ceiling 4x */
113 #define COM9_AGC_GAIN_8x        (0x20U) /* Automatic Gain Ceiling 8x */
114 #define COM9_AGC_GAIN_16x       (0x30U) /* Automatic Gain Ceiling 16x */
115 #define COM9_AGC_GAIN_32x       (0x40U) /* Automatic Gain Ceiling 32x */
116 #define COM9_DROP_VSYNC         (0x04U) /* Drop VSYNC output of corrupt frame */
117 #define COM9_DROP_HREF          (0x02U) /* Drop HREF output of corrupt frame */
118 
119 #define COM10                   (0x15U) /* Common Control 10 */
120 #define COM10_NEGATIVE          (0x80U) /* Output negative data */
121 #define COM10_HSYNC_EN          (0x40U) /* HREF changes to HSYNC */
122 #define COM10_PCLK_FREE         (0x00U) /* PCLK output option: free running PCLK */
123 #define COM10_PCLK_MASK         (0x20U) /* PCLK output option: masked during horizontal blank */
124 #define COM10_PCLK_REV          (0x10U) /* PCLK reverse */
125 #define COM10_HREF_REV          (0x08U) /* HREF reverse */
126 #define COM10_VSYNC_FALLING     (0x00U) /* VSYNC changes on falling edge of PCLK */
127 #define COM10_VSYNC_RISING      (0x04U) /* VSYNC changes on rising edge of PCLK */
128 #define COM10_VSYNC_NEG         (0x02U) /* VSYNC negative */
129 #define COM10_OUT_RANGE_8       (0x01U) /* Output data range: Full range */
130 #define COM10_OUT_RANGE_10      (0x00U) /* Output data range: Data from [10] to [F0] (8 MSBs) */
131 
132 #define REG16                   (0x16U) /* Register 16 */
133 #define REG16_BIT_SHIFT         (0x80U) /* Bit shift test pattern options */
134 #define HSTART                  (0x17U) /* Horizontal Frame (HREF column) Start 8 MSBs (2 LSBs are at HREF[5:4]) */
135 #define HSIZE                   (0x18U) /* Horizontal Sensor Size (2 LSBs are at HREF[1:0]) */
136 #define VSTART                  (0x19U) /* Vertical Frame (row) Start 8 MSBs (1 LSB is at HREF[6]) */
137 #define VSIZE                   (0x1AU) /* Vertical Sensor Size (1 LSB is at HREF[2]) */
138 #define PSHFT                   (0x1BU) /* Data Format - Pixel Delay Select */
139 #define REG_MIDH                (0x1CU) /* Manufacturer ID Byte – High */
140 #define REG_MIDL                (0x1DU) /* Manufacturer ID Byte – Low */
141 #define LAEC                    (0x1FU) /* Fine AEC Value - defines exposure value less than one row period */
142 
143 #define COM11                   (0x20U) /* Common Control 11 */
144 #define COM11_SNGL_FRAME_EN     (0x02U) /* Single frame ON/OFF selection */
145 #define COM11_SNGL_XFR_TRIG     (0x01U) /* Single frame transfer trigger */
146 
147 #define BDBASE                  (0x22U) /* Banding Filter Minimum AEC Value */
148 #define DBSTEP                  (0x23U) /* Banding Filter Maximum Step */
149 #define AEW                     (0x24U) /* AGC/AEC - Stable Operating Region (Upper Limit) */
150 #define AEB                     (0x25U) /* AGC/AEC - Stable Operating Region (Lower Limit) */
151 #define VPT                     (0x26U) /* AGC/AEC Fast Mode Operating Region */
152 #define REG28                   (0x28U) /* Selection on the number of dummy rows, N */
153 #define HOUTSIZE                (0x29U) /* Horizontal Data Output Size MSBs (2 LSBs at register EXHCH[1:0]) */
154 #define EXHCH                   (0x2AU) /* Dummy Pixel Insert MSB */
155 #define EXHCL                   (0x2BU) /* Dummy Pixel Insert LSB */
156 #define VOUTSIZE                (0x2CU) /* Vertical Data Output Size MSBs (LSB at register EXHCH[2]) */
157 #define ADVFL                   (0x2DU) /* LSB of Insert Dummy Rows in Vertical Sync (1 bit equals 1 row) */
158 #define ADVFH                   (0x2EU) /* MSB of Insert Dummy Rows in Vertical Sync */
159 #define YAVE                    (0x2FU) /* Y/G Channel Average Value */
160 #define LUMHTH                  (0x30U) /* Histogram AEC/AGC Luminance High Level Threshold */
161 #define LUMLTH                  (0x31U) /* Histogram AEC/AGC Luminance Low Level Threshold */
162 #define HREF                    (0x32U) /* Image Start and Size Control */
163 #define DM_LNL                  (0x33U) /* Dummy Row Low 8 Bits */
164 #define DM_LNH                  (0x34U) /* Dummy Row High 8 Bits */
165 #define ADOFF_B                 (0x35U) /* AD Offset Compensation Value for B Channel */
166 #define ADOFF_R                 (0x36U) /* AD Offset Compensation Value for R Channel */
167 #define ADOFF_GB                (0x37U) /* AD Offset Compensation Value for GB Channel */
168 #define ADOFF_GR                (0x38U) /* AD Offset Compensation Value for GR Channel */
169 #define OFF_B                   (0x39U) /* AD Offset Compensation Value for B Channel */
170 #define OFF_R                   (0x3AU) /* AD Offset Compensation Value for R Channel */
171 #define OFF_GB                  (0x3BU) /* AD Offset Compensation Value for GB Channel */
172 #define OFF_GR                  (0x3CU) /* AD Offset Compensation Value for GR Channel */
173 #define COM12                   (0x3DU) /* DC offset compensation for analog process */
174 
175 #define COM13                   (0x3EU) /* Common Control 13 */
176 #define COM13_BLC_EN            (0x80U) /* BLC enable */
177 #define COM13_ADC_EN            (0x40U) /* ADC channel BLC ON/OFF control */
178 #define COM13_ANALOG_BLC        (0x20U) /* Analog processing channel BLC ON/OFF control */
179 #define COM13_ABLC_GAIN_EN      (0x04U) /* ABLC gain trigger enable */
180 
181 #define COM14                   (0x3FU) /* Common Control 14 */
182 #define COM15                   (0x40U) /* Common Control 15 */
183 #define COM16                   (0x41U) /* Common Control 16 */
184 #define TGT_B                   (0x42U) /* BLC Blue Channel Target Value */
185 #define TGT_R                   (0x43U) /* BLC Red Channel Target Value */
186 #define TGT_GB                  (0x44U) /* BLC Gb Channel Target Value */
187 #define TGT_GR                  (0x45U) /* BLC Gr Channel Target Value */
188 
189 #define LC_CTR                  (0x46U) /* Lens Correction Control */
190 #define LC_CTR_RGB_COMP_1       (0x00U) /* R, G, and B channel compensation coefficient is set by LC_COEF ((0x49U)) */
191 /* R, G, and B channel compensation coefficient is set by registers LC_COEFB ((0x4BU)), LC_COEF ((0x49U)), and LC_COEFR ((0x4CU)), respectively */
192 #define LC_CTR_RGB_COMP_3       (0x04U)
193 #define LC_CTR_EN               (0x01U) /* Lens correction enable */
194 #define LC_XC                   (0x47U) /* X Coordinate of Lens Correction Center Relative to Array Center */
195 #define LC_YC                   (0x48U) /* Y Coordinate of Lens Correction Center Relative to Array Center */
196 #define LC_COEF                 (0x49U) /* Lens Correction Coefficient */
197 #define LC_RADI                 (0x4AU) /* Lens Correction Radius */
198 #define LC_COEFB                (0x4BU) /* Lens Correction B Channel Compensation Coefficient */
199 #define LC_COEFR                (0x4CU) /* Lens Correction R Channel Compensation Coefficient */
200 
201 #define FIXGAIN                 (0x4DU) /* Analog Fix Gain Amplifier */
202 #define AREF0                   (0x4EU) /* Sensor Reference Control */
203 #define AREF1                   (0x4FU) /* Sensor Reference Current Control */
204 #define AREF2                   (0x50U) /* Analog Reference Control */
205 #define AREF3                   (0x51U) /* ADC Reference Control */
206 #define AREF4                   (0x52U) /* ADC Reference Control */
207 #define AREF5                   (0x53U) /* ADC Reference Control */
208 #define AREF6                   (0x54U) /* Analog Reference Control */
209 #define AREF7                   (0x55U) /* Analog Reference Control */
210 #define UFIX                    (0x60U) /* U Channel Fixed Value Output */
211 #define VFIX                    (0x61U) /* V Channel Fixed Value Output */
212 #define AWBB_BLK                (0x62U) /* AWB Option for Advanced AWB */
213 
214 #define AWB_CTRL0               (0x63U) /* AWB Control Byte 0 */
215 #define AWB_CTRL0_GAIN_EN       (0x80U) /* AWB gain enable */
216 #define AWB_CTRL0_CALC_EN       (0x40U) /* AWB calculate enable */
217 #define AWB_CTRL0_WBC_MASK      (0x0FU) /* WBC threshold 2 */
218 
219 #define DSP_CTRL1               (0x64U) /* DSP Control Byte 1 */
220 #define DSP_CTRL1_FIFO_EN       (0x80U) /* FIFO enable/disable selection */
221 #define DSP_CTRL1_UV_EN         (0x40U) /* UV adjust function ON/OFF selection */
222 #define DSP_CTRL1_SDE_EN        (0x20U) /* SDE enable */
223 #define DSP_CTRL1_MTRX_EN       (0x10U) /* Color matrix ON/OFF selection */
224 #define DSP_CTRL1_INTRP_EN      (0x08U) /* Interpolation ON/OFF selection */
225 #define DSP_CTRL1_GAMMA_EN      (0x04U) /* Gamma function ON/OFF selection */
226 #define DSP_CTRL1_BLACK_EN      (0x02U) /* Black defect auto correction ON/OFF */
227 #define DSP_CTRL1_WHITE_EN      (0x01U) /* White defect auto correction ON/OFF */
228 
229 #define DSP_CTRL2               (0x65U) /* DSP Control Byte 2 */
230 #define DSP_CTRL2_VDCW_EN       (0x08U) /* Vertical DCW enable */
231 #define DSP_CTRL2_HDCW_EN       (0x04U) /* Horizontal DCW enable */
232 #define DSP_CTRL2_VZOOM_EN      (0x02U) /* Vertical zoom out enable */
233 #define DSP_CTRL2_HZOOM_EN      (0x01U) /* Horizontal zoom out enable */
234 
235 #define DSP_CTRL3               (0x66U) /* DSP Control Byte 3 */
236 #define DSP_CTRL3_UV_EN         (0x80U) /* UV output sequence option */
237 #define DSP_CTRL3_CBAR_EN       (0x20U) /* DSP color bar ON/OFF selection */
238 #define DSP_CTRL3_FIFO_EN       (0x08U) /* FIFO power down ON/OFF selection */
239 #define DSP_CTRL3_SCAL1_PWDN    (0x04U) /* Scaling module power down control 1 */
240 #define DSP_CTRL3_SCAL2_PWDN    (0x02U) /* Scaling module power down control 2 */
241 #define DSP_CTRL3_INTRP_PWDN    (0x01U) /* Interpolation module power down control */
242 
243 #define DSP_CTRL4               (0x67U) /* DSP Control Byte 4 */
244 #define DSP_CTRL4_YUV_RGB       (0x00U) /* Output selection YUV or RGB */
245 #define DSP_CTRL4_RAW8          (0x02U) /* Output selection RAW8 */
246 #define DSP_CTRL4_RAW10         (0x03U) /* Output selection RAW10 */
247 
248 #define AWB_BIAS                (0x68U) /* AWB BLC Level Clip */
249 #define AWB_CTRL1               (0x69U) /* AWB Control 1 */
250 #define AWB_CTRL2               (0x6AU) /* AWB Control 2 */
251 
252 #define AWB_CTRL3               (0x6BU) /* AWB Control 3 */
253 #define AWB_CTRL3_ADVANCED      (0x80U) /* AWB mode select - Advanced AWB */
254 #define AWB_CTRL3_SIMPLE        (0x00U) /* AWB mode select - Simple AWB */
255 
256 #define AWB_CTRL4               (0x6CU) /* AWB Control 4 */
257 #define AWB_CTRL5               (0x6DU) /* AWB Control 5 */
258 #define AWB_CTRL6               (0x6EU) /* AWB Control 6 */
259 #define AWB_CTRL7               (0x6FU) /* AWB Control 7 */
260 #define AWB_CTRL8               (0x70U) /* AWB Control 8 */
261 #define AWB_CTRL9               (0x71U) /* AWB Control 9 */
262 #define AWB_CTRL10              (0x72U) /* AWB Control 10 */
263 #define AWB_CTRL11              (0x73U) /* AWB Control 11 */
264 #define AWB_CTRL12              (0x74U) /* AWB Control 12 */
265 #define AWB_CTRL13              (0x75U) /* AWB Control 13 */
266 #define AWB_CTRL14              (0x76U) /* AWB Control 14 */
267 #define AWB_CTRL15              (0x77U) /* AWB Control 15 */
268 #define AWB_CTRL16              (0x78U) /* AWB Control 16 */
269 #define AWB_CTRL17              (0x79U) /* AWB Control 17 */
270 #define AWB_CTRL18              (0x7AU) /* AWB Control 18 */
271 #define AWB_CTRL19              (0x7BU) /* AWB Control 19 */
272 #define AWB_CTRL20              (0x7CU) /* AWB Control 20 */
273 #define AWB_CTRL21              (0x7DU) /* AWB Control 21 */
274 #define GAM1                    (0x7EU) /* Gamma Curve 1st Segment Input End Point (0x04U) Output Value */
275 #define GAM2                    (0x7FU) /* Gamma Curve 2nd Segment Input End Point (0x08U) Output Value */
276 #define GAM3                    (0x80U) /* Gamma Curve 3rd Segment Input End Point (0x10U) Output Value */
277 #define GAM4                    (0x81U) /* Gamma Curve 4th Segment Input End Point (0x20U) Output Value */
278 #define GAM5                    (0x82U) /* Gamma Curve 5th Segment Input End Point (0x28U) Output Value */
279 #define GAM6                    (0x83U) /* Gamma Curve 6th Segment Input End Point (0x30U) Output Value */
280 #define GAM7                    (0x84U) /* Gamma Curve 7th Segment Input End Point (0x38U) Output Value */
281 #define GAM8                    (0x85U) /* Gamma Curve 8th Segment Input End Point (0x40U) Output Value */
282 #define GAM9                    (0x86U) /* Gamma Curve 9th Segment Input End Point (0x48U) Output Value */
283 #define GAM10                   (0x87U) /* Gamma Curve 10th Segment Input End Point (0x50U) Output Value */
284 #define GAM11                   (0x88U) /* Gamma Curve 11th Segment Input End Point (0x60U) Output Value */
285 #define GAM12                   (0x89U) /* Gamma Curve 12th Segment Input End Point (0x70U) Output Value */
286 #define GAM13                   (0x8AU) /* Gamma Curve 13th Segment Input End Point (0x90U) Output Value */
287 #define GAM14                   (0x8BU) /* Gamma Curve 14th Segment Input End Point (0xB0U) Output Value */
288 #define GAM15                   (0x8CU) /* Gamma Curve 15th Segment Input End Point (0xD0U) Output Value */
289 #define SLOP                    (0x8DU) /* Gamma Curve Highest Segment Slope */
290 #define DNSTH                   (0x8EU) /* De-noise Threshold */
291 #define EDGE0                   (0x8FU) /* Edge Enhancement Strength Control */
292 #define EDGE1                   (0x90U) /* Edge Enhancement Threshold Control */
293 #define DNSOFF                  (0x91U) /* Auto De-noise Threshold Control */
294 #define EDGE2                   (0x92U) /* Edge Enhancement Strength Upper Limit */
295 #define EDGE3                   (0x93U) /* Edge Enhancement Strength Upper Limit */
296 #define MTX1                    (0x94U) /* Matrix Coefficient 1 */
297 #define MTX2                    (0x95U) /* Matrix Coefficient 2 */
298 #define MTX3                    (0x96U) /* Matrix Coefficient 3 */
299 #define MTX4                    (0x97U) /* Matrix Coefficient 4 */
300 #define MTX5                    (0x98U) /* Matrix Coefficient 5 */
301 #define MTX6                    (0x99U) /* Matrix Coefficient 6 */
302 
303 #define MTX_CTRL                (0x9AU) /* Matrix Control */
304 #define MTX_CTRL_DBL_EN         (0x80U) /* Matrix double ON/OFF selection */
305 
306 #define BRIGHTNESS              (0x9BU) /* Brightness Control */
307 #define CONTRAST                (0x9CU) /* Contrast Gain */
308 #define UVADJ0                  (0x9EU) /* Auto UV Adjust Control 0 */
309 #define UVADJ1                  (0x9FU) /* Auto UV Adjust Control 1 */
310 #define SCAL0                   (0xA0U) /* DCW Ratio Control */
311 #define SCAL1                   (0xA1U) /* Horizontal Zoom Out Control */
312 #define SCAL2                   (0xA2U) /* Vertical Zoom Out Control */
313 #define FIFODLYM                (0xA3U) /* FIFO Manual Mode Delay Control */
314 #define FIFODLYA                (0xA4U) /* FIFO Auto Mode Delay Control */
315 
316 #define SDE                     (0xA6U) /* Special Digital Effect Control */
317 #define SDE_NEGATIVE_EN         (0x40U) /* Negative image enable */
318 #define SDE_GRAYSCALE_EN        (0x20U) /* Gray scale image enable */
319 #define SDE_V_FIXED_EN          (0x10U) /* V fixed value enable */
320 #define SDE_U_FIXED_EN          (0x08U) /* U fixed value enable */
321 #define SDE_CONT_BRIGHT_EN      (0x04U) /* Contrast/Brightness enable */
322 #define SDE_SATURATION_EN       (0x02U) /* Saturation enable */
323 #define SDE_HUE_EN              (0x01U) /* Hue enable */
324 
325 #define USAT                    (0xA7U) /* U Component Saturation Gain */
326 #define VSAT                    (0xA8U) /* V Component Saturation Gain */
327 #define HUECOS                  (0xA9U) /* Cosine value × (0x80U) */
328 #define HUESIN                  (0xAAU) /* Sine value × (0x80U) */
329 #define SIGN_BIT                (0xABU) /* Sign Bit for Hue and Brightness */
330 
331 #define DSPAUTO                 (0xACU) /* DSP Auto Function ON/OFF Control */
332 #define DSPAUTO_AWB_EN          (0x80U) /* AWB auto threshold control */
333 #define DSPAUTO_DENOISE_EN      (0x40U) /* De-noise auto threshold control */
334 #define DSPAUTO_EDGE_EN         (0x20U) /* Sharpness (edge enhancement) auto strength control */
335 #define DSPAUTO_UV_EN           (0x10U) /* UV adjust auto slope control */
336 #define DSPAUTO_SCAL0_EN        (0x08U) /* Auto scaling factor control (register SCAL0 ((0xA0U))) */
337 #define DSPAUTO_SCAL1_EN        (0x04U) /* Auto scaling factor control (registers SCAL1 ((0xA1U) and SCAL2 ((0xA2U)))*/
338 
339 #ifdef __cplusplus
340 extern "C" {
341 #endif
342 
343 /*
344  * ov7725 initialization routine
345  */
346 hpm_stat_t ov7725_init(camera_context_t *context, camera_config_t *ov_config);
347 
348 /*
349  * ov7725 read register
350  */
351 hpm_stat_t ov7725_read_register(camera_context_t *context, uint8_t reg, uint8_t *buf);
352 
353 /*
354  * ov7725 write register
355  */
356 hpm_stat_t ov7725_write_register(camera_context_t *context, uint8_t reg, uint8_t val);
357 
358 /*
359  * ov7725 reset
360  */
361 hpm_stat_t ov7725_software_reset(camera_context_t *context);
362 
363 /*
364  * ov7725 check chip id
365  */
366 hpm_stat_t ov7725_check_chip_id(camera_context_t *context);
367 
368 /**
369  * @brief ov7725 power up
370  *
371  * @param [in] context camera_context_t
372  */
373 void ov7725_power_up(camera_context_t *context);
374 
375 #ifdef __cplusplus
376 }
377 #endif
378 #endif /* HPM_OV7725_H */
379